diff --git a/CHANGELOG.md b/CHANGELOG.md
index d34a0b0d3732f81e768d0c98382390628ea6fefc..431ef7fb956604de52dbf937c82dcfd7e883fd83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## [6.3.4](https://gitlab.com/to-be-continuous/python/compare/6.3.3...6.3.4) (2023-09-22)
+
+
+### Bug Fixes
+
+* **bumpversion:** fix bumpversion CLI arguments ([7d95ca1](https://gitlab.com/to-be-continuous/python/commit/7d95ca15781e83b8bba05394f095bd5ffc211fc8)), closes [#53](https://gitlab.com/to-be-continuous/python/issues/53)
+
 ## [6.3.3](https://gitlab.com/to-be-continuous/python/compare/6.3.2...6.3.3) (2023-08-09)
 
 
diff --git a/README.md b/README.md
index 417fa63fa13b419f7f8ea74779f8c13801cf844b..f90d780dea15484600a782362fe53710350e670a 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ In order to include this template in your project, add the following to your `gi
 ```yaml
 include:
   - project: 'to-be-continuous/python'
-    ref: '6.3.3'
+    ref: '6.3.4'
     file: '/templates/gitlab-ci-python.yml'
 ```
 
diff --git a/templates/gitlab-ci-python.yml b/templates/gitlab-ci-python.yml
index 193bd92d2f34bf9da011b69d86b8c8acdc2db7e0..5f1c497a7c58d7461e78d4ab7a79e525000cf7e6 100644
--- a/templates/gitlab-ci-python.yml
+++ b/templates/gitlab-ci-python.yml
@@ -556,7 +556,7 @@ stages:
   image: $PYTHON_IMAGE
   services:
     - name: "$TBC_TRACKING_IMAGE"
-      command: ["--service", "python", "6.3.3"]
+      command: ["--service", "python", "6.3.4"]
   # Cache downloaded dependencies and plugins between builds.
   # To keep cache across branches add 'key: "$CI_JOB_NAME"'
   cache: